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Otsego Township Dam Area

All POL/SITREP's for this site Otsego Township Dam Area
Otsego Township, MI - EPA Region V
POLREP #35
Progress
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U.S. ENVIRONMENTAL PROTECTION AGENCY
POLLUTION/SITUATION REPORT
Otsego Township Dam Area - Removal Polrep

EPA Emergency Response

UNITED STATES ENVIRONMENTAL PROTECTION AGENCY
Region V

Subject: POLREP #35
Progress
Otsego Township Dam Area
059B
Otsego Township, MI
Latitude: 42.4601694 Longitude: -85.7199333


To: Douglas Ballotti, EPA
Samuel Borries, EPA
Mike Ribordy, EPA
Jim Saric, EPA
Mark Mills, MDNR
Polly Synk, MDAG
Cyndi Trobeck, City of Otsego
Valincia Darby, U.S. DOI

From: Paul Ruesch, OSC
Date: 2/16/2018
Reporting Period: 2/3/2018 - 2/16/2018

1. Introduction
  1.1 Background
   
Site Number: 059B    Contract Number:  
D.O. Number:      Action Memo Date: 4/6/2016
Response Authority: CERCLA    Response Type: PRP Oversight
Response Lead: PRP    Incident Category: Removal Action
NPL Status: NPL    Operable Unit: 5
Mobilization Date: 8/1/2016    Start Date: 8/1/2016
Demob Date:      Completion Date:  
CERCLIS ID: MID006007306    RCRIS ID:
ERNS No.:    State Notification: DEQ
FPN#:    Reimbursable Account #: 059B

1.1.1 Incident Category     
Time Critical Removal Action - PRP Oversight

1.1.2 Site Description
See PolRep #1

1.1.2.1 Location
See PolRep #1

1.1.2.2 Description of Threat

See PolRep #1

1.1.3 Preliminary Removal Assessment/Removal Site Inspection Results

See PolRep #1

2. Current Activities
  2.1 Operations Section
   

2.1.1 Narrative
Removal operations continue in BRSAs 7 & 8. Removal of the temporary WCS continues.

2.1.2 Response Actions During Reporting Period

BRSA 7
- Excavation of contaminated soils and sediments continues with confirmation results received in the riverbank grid shown in Table 1 below. There are 63 total river bank grids in BRSA 7, with each grid consisting of approximately 50 feet of riverbank. There are 3 stream tubes, with each varying in size. The target clean-up goal in riverbank soils is 5 mg/kg total PCBs and in-stream sediments is 1mg/kg total PCBs;
- Continued transportation and disposal of contaminated soils and sediments (utilizing the staging pad in BRSA 6); and
- Continued maintenance of stream tube protection measures to prevent erosion.

BRSA 7 RIVERBANK            GRID TOTAL ESTIMATED EXCAVATION DEPTH (in) FINAL CONFIRMATION RESULT
(Total PCBs,mg/kg)
         12         48         0.54
Table 1. BRSA 7 Riverbank Grid Confirmation Sampling Results

General Table Notes: Confirmatory sampling takes place immediately following excavation of contaminated soils and/or sediments in accordance with procedures outlined in the FSP and the TM for BRSAs 7 & 8. Both documents can be found in
the ‘Documents' Section of the project website. Stream tube grids are numbered consistent with the riverbank grid they are located adjacent to. A figure showing the location of both (preliminary) riverbank grids and stream tubes can be found on Figure 1-7 of the BRSA 7 & 8 TM.

BRSA 8

- Excavation of contaminated soils continues, with confirmation results received in riverbank grids shown in Table 2 below. There are 63 total river bank grids in BRSA 8, with each grid consisting of approximately 50 lineal feet of riverbank. There are 3 stream tubes, with each stream tube varying in size. The target clean-up goal in the riverbank soils is 5 mg/kg total PCBs and in-stream sediments is 1mg/kg total PCBs; 
- Maintenance of stream tube protection measures to prevent erosion; and
- Continued transportation and disposal of contaminated soils and sediments (utilizing the staging pad in BRSA 9).

BRSA 8 RIVERBANK            GRID TOTAL ESTIMATED EXCAVATION DEPTH (in) FINAL CONFIRMATION       RESULT
(Total PCBs, mg/kg)
            9*           12*             1.5*
           14           12                  0.17
           15           12             0.37
           16           24             0.071
           17           24             0.14
           18           24             0.26
           19           24           <0.035
           20           24           <0.041
           21           24           <0.067
           22           24           <0.066
           23           24           <0.068
           24           24           <0.067
           36           24             4.8
           37           24           <0.068
           38           24           <0.064
           41           24           <0.037      
           42           24           <0.061
           43           24           <0.064
           44           24           <0.067
           48           48           <0.067
           53            6           <0.067
           54           36           <0.069
           55           36             0.098
           56           36             0.97
           57           36           <0.073
           58           36             0.45
           59           36             0.35
Table 2. BRSA 8 Riverbank Grid Confirmation Sampling Results
General Table Notes: Confirmatory sampling takes place immediately following excavation of contaminated soils and/or sediments in accordance with procedures outlined in the FSP and the TM for BRSAs 7 & 8. Both documents can be found in the ‘Documents' Section of the project website. Stream tube grids are numbered consistent with the riverbank grid they are located adjacent to. A figure showing the location of both (preliminary) riverbank grids and stream tubes can be found on Figure 1-8 of the BRSA 7 & 8 TM.
* Grid 9 was further excavated as the results of split sampling by START resulted in a value > 5 mg/kg. The results reported were taken after the grid was excavated an additional 6 inches.

OVERALL SITE

- Transport/disposal of approximately 1,691 tons of excavated soils to an EPA-approved landfill facility (see Section 2.1.4);
- Daily particulate monitoring (PM10) around the site perimeter (when feasible) with no sustained exceedance off site of particulates above the action level of 1.5 mg/m3;
- Turbidity monitoring utilizing a hand held monitoring instrument with no sustained exceedances;
- Treatment of approximately 31,060 gallons of contact water from contaminated grids and contaminated soils staging pads in on-site WWTPs located in BRSAs 6 & 9 (see Section 2.1.4). Sampling results from both WWTPs continue to show non-detect levels for PCBs in the treated discharge; and
- Removal of the temporary WCS continues (see photos). Half of the structure has been successfully removed.

2.1.3 Enforcement Activities, Identity of Potentially Responsible Parties (PRPs)

See PolRep #1

2.1.4 Progress Metrics

Both quantities during the reporting period ('Quantity' column) and totals to date ('Total' column) are included in the table.

Waste Stream Medium Quantity Total               Manifest #  Treatment Disposal
 Cardboard solid 0 lbs 1230 lbs NA recycling Otsego Recycling Center
 Plastic solid 0 lbs 545 lbs NA recycling Otsego Recycling Center
 Steel solid 0 lbs 27,560 lbs various  recycling Broken Arrow Recycling
 Contaminated soil (< 50 ppm* PCBs) solid 1,691 tons (est) 42,082 tons(est) various disposal Republic Ottawa County Farms Landfill, Coopersville, MI
 Contaminated soil
(> 50 ppm* PCBs)
solid 0 tons 103.91 tons     various disposal US Ecology Michigan,
Belleville, MI
 Contact water liquid 31,060 gal           1,834,556 gal  NA on-site WWTP On-site reuse/discharge to Kalamazoo River
*Note: 1 ppm = 1 mg/kg

  2.2 Planning Section
   

2.2.1 Anticipated Activities
During the next reporting period, the following activities are expected to occur:

BRSA 6
- Continue staging pad and WWTP operations to support removal operations in BRSA 7.

BRSA 7
- Continue access road construction along riverbanks;
- Continue excavation of contaminated riverbank soils and in-stream sediments;
- Treat contact water from contaminated grids, stream tubes and staging pad (located in BRSA 6); and
- Transport contaminated soils & sediments for disposal.

BRSA 8
- Continue excavation of contaminated riverbank soils and in-stream sediments;
- Treat contact water from contaminated grids, stream tubes and staging pad (located in BRSA 9); and
- Transport contaminated soils & sediments for disposal.

BRSA 9
- Continue staging pad and WWTP operations to support removal operations in BRSA 8.

SITEWIDE
- Operate dust and turbidity control/monitoring systems (as feasible & necessary); and
- Continue removal of the temporary WCS. Crews will commence removal of the remaining half of the structure from the south side of the Kalamazoo River.

2.2.1.1 Planned Response Activities

See Sections 2.2.1 & 2.2.1.2

2.2.1.2 Administrative Activities / Next Steps
- Design plans for restoration of the area around the temporary WCS were submitted to US EPA and MDNR on February 16. A land use permit will be issued by MDNR for the restoration component of the proposed work plan once the design plans are reviewed and approved.

2.2.2 Issues
- Repeated winter storms and hazardous road conditions caused suspension of dredging activities in BRSAs 7 & 8 on February 12. Removal activities will continue as soon as possible. Work continues on removal of the temporary WCS. 

  2.3 Logistics Section
    See PolRep #1

  2.4 Finance Section
    No information available at this time.

  2.5 Other Command Staff
   

2.5.1 Safety Officer

A safety meeting is held prior to work start each day by on-site safety officer(s) from Envirocon & AMEC-FW.

2.5.2 Liaison Officer

2.5.3 Information Officer

A news article highlighting the removal of the temporary WCS appeared the Allegan News and Otsego Union Enterprise on February 8.

3. Participating Entities
 

3.1 Unified Command

3.2 Cooperating Agencies

See PolRep #1

4. Personnel On Site
 

On average, the following personnel were present on site during the reporting period: 

START - 2
MDNR - 1
MDEQ - 1
Envirocon - 32
Milbocker & Sons, Inc. - 3
Spicer Group, Inc. - 1
AMEC-FW - 2

TOTAL: 42

5. Definition of Terms
  AMEC-FW          AMEC Foster Wheeler     
BRSA                 Bank Removal and Stabilization Area
FSP                    Field Sampling Plan
MDNR                Michigan Department of Natural Resources     
NTU    Nephelometric Turbidity Unit
OSC                   On Scene Coordinator
PCB    Polychlorinated Biphenyl
PM    Particulate Matter
PolRep               Pollution Report
PRP                    Potentially Responsible Party
START                Superfund Technical Assessment & Response Team (US EPA contractor)
US EPA              United States Environmental Protection Agency   
WCS                   Water Control Structure
WWTP                Waste Water Treatment Plant     

6. Additional sources of information
 

6.1 Internet location of additional information/report

https://response.epa.gov/otsegodam

www.epa.gov/superfund/allied-paper-kalamazoo

6.2 Reporting Schedule
The next PolRep will be generated on March 2.

7. Situational Reference Materials
  No information available at this time.


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